I hav e a Vaillant 110 Timeswitch fitted to my boiler and it has started to play up,it loses time and sometimes stops working completely? When i take it out and refit it ,it seems to start working ok again for a short while? Before I go and buy a replacement I would like to know if any body has had this problem before and if you think it is definitely the Timeswitch and not a problem with the connector on th PCB?
